• (a.) Relating to or resembling croup; especially, attended with the formation of a deposit or membrane like that found in membranous croup; as, croupous laryngitis. Found on http://thinkexist.com/dictionary/meaning/croupous/
Croup'ous adjective (Medicine) Relating to or resembling croup; especially, attended with the formation of a deposit or membrane like that found in membranous croup; as, croupous laryngitis. Croupous pneumonia , pneumonia attended with deposition of fibrinous matter in the air ... Found on http://www.encyclo.co.uk/webster/C/193